This addresses Ian C's comments on v1 of a previous patch (which
was applied instead of v2).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Run a spell checker over the doc and fix the typos and spelling it uncovers
(including a few I just added myself).
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
These were mostly ones from xen/arch/x86/boot/cmdline.S which are handled early
and therefore do not use the usual infrastructure and so got missed in the
initial trawl.
The document now contains (AFAICT) every still valid option which was
previously documented at:
http://wiki.xen.org/wiki?title=Xen_Hypervisor_Boot_Options&oldid=1379
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
On 64bit Xen with 32bit dom0 and crashkernel, xmalloc'ing items such
as the CPU crash notes will go into the xenheap, which tends to be in
upper memory. This causes problems on machines with more than 64GB
(or 4GB if no PAE support) of ram as the crashkernel physically cant
access the crash notes.
The solution is to force Xen to allocate certain structures in lower
memory. This is achieved by introducing two new command line
parameters; low_crashinfo and crashinfo_maxaddr. Because of the
potential impact on 32bit PV guests, and that this problem does not
exist for 64bit dom0 on 64bit Xen, this new functionality defaults to
the codebase's previous behavior, requiring the user to explicitly
add extra command line parameters to change the behavior.
This patch consists of 3 logically distinct but closely related
changes.
1) Add the two new command line parameters.
2) Change crash note allocation to use lower memory when instructed.
3) Change the conring buffer to use lower memory when instructed.
There result is that the crash notes and console ring will be placed
in lower memory so useful information can be recovered in the case of
a crash.
Changes since v1:
- Patch xen-command-line.markdown to document new options
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
Introduce a command parameter to set the watchtog timeout. Manually
specifying "watchdog_timeout=<seconds>" on the command line will also
turn the watchdog on. For consistency, move opt_watchdog into nmi.c
along with opt_watchdog_timeout.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
Still a work in progress, but submitted as a start.
Changes since v1:
- Include all up to date information from the wiki.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
David Vrabel
Ian Campbell
Andrew Cooper